Pull drm fixes from Dave Airlie:
 "Fixes for big 3 drivers:

  nouveau: revert earlier MBP fix, put a dmi based MBP fix in its place
  (fixes a regression we found on some Dell eDP panels doing some
  internal testing)

  radeon: revert pll fixes, real fix is too invasive, fix scratch leak

  intel: 3 minor fixes, one for HDMI audio."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: add dmi quirk for gpio reset
  drm/radeon: Prevent leak of scratch register on resume from suspend
  Revert "drm/nv50-/gpio: initialise to vbios defaults during init"
  Revert "drm/radeon: rework pll selection (v3)"
  drm/i915: HDMI - Clear Audio Enable bit for Hot Plug
  drm/i915: Reduce a pin-leak BUG into a WARN
  drm/i915: enable lvds pin pairs before dpll on gen2

Pull input updates from Dmitry Torokhov:
 "Updates for the input subsystem.  Just a few driver updates mostly
  dealing with recent regressions."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: edt-ft5x06 - return -EFAULT on copy_to_user() error
  Input: sentelic - filter out erratic movement when lifting finger
  Input: ambakmi - [un]prepare clocks when enabling amd disabling
  Input: i8042 - disable mux on Toshiba C850D
  Revert "input: ab8500-ponkey: Create AB8500 domain IRQ mapping"
  Input: imx_keypad - fix missing clk conversions
  Input: usbtouchscreen - initialize eGalax devices

Pull watchdog fixes from Wim Van Sebroeck:
 "Fix a kdump issue in hpwdt and a possible NULL dereference."

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: move the dereference below the NULL test
  hpwdt: Fix kdump issue in hpwdt

Pull hwmon fixes from Guenter Roeck:
 - Add missing 'name' sysfs attributes to ad7314 and ads7871 drivers
 - Bump maximum wait time for applesmc driver (again)
 - Fix build warning seen with W=1 in include/linux/kernel.h, introduced
   with commit b6d86d3d ("Fix DIV_ROUND_CLOSEST to support negative
   dividends")

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  linux/kernel.h: Fix warning seen with W=1 due to change in DIV_ROUND_CLOSEST
  hwmon: (applesmc) Bump max wait
  hwmon: (ad7314) Add 'name' sysfs attribute
  hwmon: (ads7871) Add 'name' sysfs attribute

Pull slave-dmaengine fixes from Vinod Koul:
 "There are two trivial fixes in pl330 driver and two in at_hdmac
  driver."

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  DMA: PL330: Check the pointer returned by kzalloc
  DMA: PL330: Fix potential NULL pointer dereference in pl330_submit_req()
  dmaengine: at_hdmac: check that each sg data length is non-null
  dmaengine: at_hdmac: fix comment in atc_prep_slave_sg()

Pull arm-soc bug fixes from Olof Johansson:
 "A couple of samsung clock locking fixes, at91 device tree gpio
  configuration fix and a couple more for shmobile and i.MX.

  All small targeted fixes."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM i.MX25: Make timer irq work again
  ARM: imx: armadillo5x0: Fix illegal register access
  ARM: shmobile: kzm9g: bugfix: correct mmcif interrupt settings
  ARM: SAMSUNG: Use spin_lock_{irqsave,irqrestore} in clk_set_rate
  ARM: at91: fix missing #interrupt-cells on gpio-controller
  ARM: SAMSUNG: use spin_lock_irqsave() in clk_set_parent

Pull s390 fixes from Martin Schwidefsky:
 "Bug fixes for 3.6-rc7, including some important patches for large page
  related memory management issues."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/dasd: fix read unit address configuration loop
  s390/dasd: fix pathgroup race
  s390/mm: fix user access page-table walk code
  s390/hwcaps: do not report high gprs for 31 bit kernel
  s390/cio: invalidate cdev pointer before deregistration
  s390/cio: fix IO subchannel event race
  s390/dasd: move wake_up call
  s390/hugetlb: use direct TLB flushing for hugetlbfs pages
  s390/mm: fix deadlock in unmap_hugepage_range()

Merge tag 'stable/for-linus-3.6-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 - Fix M2P batching re-using the incorrect structure field.

   In v3.5 we added batching for M2P override (Machine Frame Number ->
   Physical Frame Number), but the original MFN was saved in an
   incorrect structure - and we would oops/restore when restoring with
   the old MFN.

 - Disable BIOS SMP MP table search.

   A bootup issue that we had ignored until we found that on DL380 G6 it
   was needed.

* tag 'stable/for-linus-3.6-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/boot: Disable BIOS SMP MP table search.
  xen/m2p: do not reuse kmap_op->dev_bus_addr

The format_array_alloc() function is fundamentally racy, in that it
prints the array twice: once to figure out how much space to allocate
for the buffer, and the second time to actually print out the data.

If any of the array contents changes in between, the allocation size may
be wrong, and the end result may be truncated in odd ways.

Just don't do it.  Allocate a maximum-sized array up-front, and just
format the array contents once.  The only user of the u32_array
interfaces is the Xen spinlock statistics code, and it has 31 entries in
the arrays, so the maximum size really isn't that big, and the end
result is much simpler code without the bug.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

u32_array_open() is racy when multiple threads read from a file with a
seek position of zero, i.e. when two or more simultaneous reads are
occurring after the non-seekable files are created.  It is possible that
file->private_data is double-freed because the threads races between

	kfree(file->private-data);

and

	file->private_data = NULL;

The fix is to only do format_array_alloc() when the file is opened and
free it when it is closed.

Note that because the file has always been non-seekable, you can't open
it and read it multiple times anyway, so the data has always been
generated just once.  The difference is that now it is generated at open
time rather than at the time of the first read, and that avoids the
race.
Reported-by: NDave Jones <davej@redhat.com>
Acked-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: NRaghavendra <raghavendra.kt@linux.vnet.ibm.com>
Signed-off-by: NDavid Rientjes <rientjes@google.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Daniel writes:
Essentially just flush my -fixes queue before I head off to xdc.
- gen2 regression fixer, we've enabled the lvds stuff too late. Not
  causing any known issues, but this restores the sequence before a
  refactor that landed in 3.5, and lvds is a fickle beast. And seriously,
  who runs gen2 still ...
- downgrade a BUG to a WARN - we haven't root-caused/fixed the underlying
  issue yet, but this should help bug reporters quite a bit.
- properly disable hdmi audio - we've lost track of this, which resulted
  in the alsa driver again losing track of the unplug event.

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: HDMI - Clear Audio Enable bit for Hot Plug
  drm/i915: Reduce a pin-leak BUG into a WARN
  drm/i915: enable lvds pin pairs before dpll on gen2

This fixes the gpio reset problem so the Retina MBP works, but avoids
breaking the Dell systems. Ben will work on a better solution for 3.7.

Tested by me on retina MBP.
Signed-off-by: NDave Airlie <airlied@redhat.com>

fixes a resume regression on pre-r6xx asics.

* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: Prevent leak of scratch register on resume from suspend

Cards typically have 5-7 scratch registers; one of these is reserved for
rdev->rptr_save_reg. Unfortunately the reservation is done in function
r100_cp_init, which is called by all drivers except r600 - and this
function is also invoked on resume from suspend. After several resumes,
no scratch registers are free and graphics acceleration is disabled.

Dmesg then reports either:
   *ERROR* radeon: cp failed to get scratch reg (-22).
   *ERROR* radeon: cp isn't working(-22).
   radeon 0000:01:00.0: failed initializing CP (-22).
or:
   *ERROR* radeon: failed to get scratch reg (-22).
   *ERROR* radeon: failed testing IB on GFX ring (-22).
   *ERROR* ib ring test failed (-22).

The chain of calls on boot for all except r600 is:
radeon_init -> ... -> (rXXX_init) -> rXXX_startup -> r100_cp_init

The chain of calls on resume for all except r600 is:
rXXX_resume -> rXXX_startup -> r100_cp_init.

R600 correctly allocates rptr_save_reg in r600_init (ie once only, not
in resume). However moving the code into the init functions for all
drivers means touching 4 drivers. So instead, this patch just adds a
test in r100_cp_init to avoid reallocating on resume. As the rdev
structure is allocated via kzalloc in radeon_driver_load_kms, and zero
is not a valid registerid, zero safely implies not-yet-allocated.

This issue appears to have been introduced in c7eff978 (3.6.0-rcN)
Signed-off-by: NSimon Kitching <skitching@vonos.net>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This reverts commit 991083ba.

We discovered this causes problem on some Dell eDP laptops, so Apple
lose out for now, I might try and whip up a dmi based workaround for 3.6
but I'm not sure I'll get time.
Signed-off-by: NDave Airlie <airlied@redhat.com>

The pll fix ended up causing some regressions.  Drop it for 3.6.  I've
fixed it properly in 3.7, but the fix is too invasive for 3.6.

* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
  Revert "drm/radeon: rework pll selection (v3)"

copy_to_user() returns the number of bytes remaining, but we want a
negative error code here.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

When lifing finger off the surface some versions of touchpad send movement
packets with very low coordinates, which cause cursor to jump to the upper
left corner of the screen. Let's ignore least significant bits of X and Y
coordinates if higher bits are all zeroes and consider finger not touching
the pad.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43197Reported-and-tested-by: NAleksey Spiridonov <leks13@leks13.ru>
Tested-by: NEddie Dunn <eddie.dunn@gmail.com>
Tested-by: NJakub Luzny <limoto94@gmail.com>
Tested-by: NOlivier Goffart <olivier@woboq.com>
Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Clocks must be prepared before enabling and unprepared
after disabling. Use appropriate functions to do this
in one go.
Signed-off-by: NPawel Moll <pawel.moll@arm.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

On Toshiba Satellite C850D, the touchpad and the keyboard might randomly
not work at boot. Preventing MUX mode activation solves this issue.
Signed-off-by: NAnisse Astier <anisse@astier.eu>
Cc: stable@kernel.org
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

As the initial domain we are able to search/map certain regions
of memory to harvest configuration data. For all low-level we
use ACPI tables - for interrupts we use exclusively ACPI _PRT
(so DSDT) and MADT for INT_SRC_OVR.

The SMP MP table is not used at all. As a matter of fact we do
not even support machines that only have SMP MP but no ACPI tables.

Lets follow how Moorestown does it and just disable searching
for BIOS SMP tables.

This also fixes an issue on HP Proliant BL680c G5 and DL380 G6:

9f->100 for 1:1 PTE
Freeing 9f-100 pfn range: 97 pages freed
1-1 mapping on 9f->100
.. snip..
e820: BIOS-provided physical RAM map:
Xen: [mem 0x0000000000000000-0x000000000009efff] usable
Xen: [mem 0x000000000009f400-0x00000000000fffff] reserved
Xen: [mem 0x0000000000100000-0x00000000cfd1dfff] usable
.. snip..
Scan for SMP in [mem 0x00000000-0x000003ff]
Scan for SMP in [mem 0x0009fc00-0x0009ffff]
Scan for SMP in [mem 0x000f0000-0x000fffff]
found SMP MP-table at [mem 0x000f4fa0-0x000f4faf] mapped at [ffff8800000f4fa0]
(XEN) mm.c:908:d0 Error getting mfn 100 (pfn 5555555555555555) from L1 entry 0000000000100461 for l1e_owner=0, pg_owner=0
(XEN) mm.c:4995:d0 ptwr_emulate: could not get_page_from_l1e()
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff81ac07e2>] xen_set_pte_init+0x66/0x71
. snip..
Pid: 0, comm: swapper Not tainted 3.6.0-rc6upstream-00188-gb6fb969-dirty #2 HP ProLiant BL680c G5
.. snip..
Call Trace:
 [<ffffffff81ad31c6>] __early_ioremap+0x18a/0x248
 [<ffffffff81624731>] ? printk+0x48/0x4a
 [<ffffffff81ad32ac>] early_ioremap+0x13/0x15
 [<ffffffff81acc140>] get_mpc_size+0x2f/0x67
 [<ffffffff81acc284>] smp_scan_config+0x10c/0x136
 [<ffffffff81acc2e4>] default_find_smp_config+0x36/0x5a
 [<ffffffff81ac3085>] setup_arch+0x5b3/0xb5b
 [<ffffffff81624731>] ? printk+0x48/0x4a
 [<ffffffff81abca7f>] start_kernel+0x90/0x390
 [<ffffffff81abc356>] x86_64_start_reservations+0x131/0x136
 [<ffffffff81abfa83>] xen_start_kernel+0x65f/0x661
(XEN) Domain 0 crashed: 'noreboot' set - not rebooting.

which is that ioremap would end up mapping 0xff using _PAGE_IOMAP
(which is what early_ioremap sticks as a flag) - which meant
we would get MFN 0xFF (pte ff461, which is OK), and then it would
also map 0x100 (b/c ioremap tries to get page aligned request, and
it was trying to map 0xf4fa0 + PAGE_SIZE - so it mapped the next page)
as _PAGE_IOMAP. Since 0x100 is actually a RAM page, and the _PAGE_IOMAP
bypasses the P2M lookup we would happily set the PTE to 1000461.
Xen would deny the request since we do not have access to the
Machine Frame Number (MFN) of 0x100. The P2M[0x100] is for example
0x80140.

CC: stable@vger.kernel.org
Fixes-Oracle-Bugzilla: https://bugzilla.oracle.com/bugzilla/show_bug.cgi?id=13665Acked-by: NJan Beulich <jbeulich@suse.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Pull block fixes from Jens Axboe:
 "A small collection of driver fixes/updates and a core fix for 3.6.  It
  contains:

   - Bug fixes for mtip32xx, and support for new hardware (just addition
     of IDs).  They have been queued up for 3.7 for a few weeks as well.

   - rate-limit a failing command error message in block core.

   - A fix for an old cciss bug from Stephen.

   - Prevent overflow of partition count from Alan."

* 'for-linus' of git://git.kernel.dk/linux-block:
  cciss: fix handling of protocol error
  blk: add an upper sanity check on partition adding
  mtip32xx: fix user_buffer check in exec_drive_command
  mtip32xx: Remove dead code
  mtip32xx: Change printk to pr_xxxx
  mtip32xx: Proper reporting of write protect status on big-endian
  mtip32xx: Increase timeout for standby command
  mtip32xx: Handle NCQ commands during the security locked state
  mtip32xx: Add support for new devices
  block: rate-limit the error message from failing commands

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: Fix up TIF_NOTIFY_RESUME sans TIF_SIGPENDING handling.
  sh: pfc: Release spinlock in sh_pfc_gpio_request_enable() error path
  sh: intc: Fix up multi-evt irq association.

Pull rpmsg fix from Ohad Ben-Cohen:
 "A quick rpmsg fix from Fernando, fixing two buggy invocations of
  dma_free_coherent"

* tag 'rpmsg-3.6-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg:
  rpmsg: fix dma_free_coherent dev parameter

Pull md fixes from NeilBrown:
 "3 fixes for md in 3.6.

  One reverts a recent patch which turns out to not be such a good idea.

  Other two fix minor bugs with the new (since 3.3) 'replacement' code
  and have been tagged for -stable."

* tag 'md-3.6-fixes' of git://neil.brown.name/md:
  md: make sure metadata is updated when spares are activated or removed.
  md/raid5: fix calculate of 'degraded' when a replacement becomes active.
  Revert "md/raid5: For odirect-write performance, do not set STRIPE_PREREAD_ACTIVE."

Pull workqueue / powernow-k8 fix from Tejun Heo:
 "This is the fix for the bug where cpufreq/powernow-k8 was tripping
  BUG_ON() in try_to_wake_up_local() by migrating workqueue worker to a
  different CPU.

    https://bugzilla.kernel.org/show_bug.cgi?id=47301

  As discussed, the fix is now two parts - one to reimplement
  work_on_cpu() so that it doesn't create a new kthread each time and
  the actual fix which makes powernow-k8 use work_on_cpu() instead of
  performing manual migration.

  While pretty late in the merge cycle, both changes are on the safer
  side.  Jiri and I verified two existing users of work_on_cpu() and
  Duncan confirmed that the powernow-k8 fix survived about 18 hours of
  testing."

* 'for-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  cpufreq/powernow-k8: workqueue user shouldn't migrate the kworker to another CPU
  workqueue: reimplement work_on_cpu() using system_wq

This reverts commit ca3b3faf.

There was a plan to place ab8500_irq_get_virq() calls in each AB8500
child device prior to requesting an IRQ, but as we're no longer using
Device Tree to collect our IRQ numbers, it's actually better to allow
the core to do this during device registration time. So the IRQ number
we pull from its resource has already been converted to a virtual IRQ.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Sync with mainline so that I can revert an input patch that came in through
another subsystem tree.

powernowk8_target() runs off a per-cpu work item and if the
cpufreq_policy->cpu is different from the current one, it migrates the
kworker to the target CPU by manipulating current->cpus_allowed.  The
function migrates the kworker back to the original CPU but this is
still broken.  Workqueue concurrency management requires the kworkers
to stay on the same CPU and powernowk8_target() ends up triggerring
BUG_ON(rq != this_rq()) in try_to_wake_up_local() if it contends on
fidvid_mutex and sleeps.

It is unclear why this bug is being reported now.  Duncan says it
appeared to be a regression of 3.6-rc1 and couldn't reproduce it on
3.5.  Bisection seemed to point to 63d95a91 "workqueue: use @pool
instead of @gcwq or @cpu where applicable" which is an non-functional
change.  Given that the reproduce case sometimes took upto days to
trigger, it's easy to be misled while bisecting.  Maybe something made
contention on fidvid_mutex more likely?  I don't know.

This patch fixes the bug by using work_on_cpu() instead if @pol->cpu
isn't the same as the current one.  The code assumes that
cpufreq_policy->cpu is kept online by the caller, which Rafael tells
me is the case.

stable: ed48ece2 ("workqueue: reimplement work_on_cpu() using
        system_wq") should be applied before this; otherwise, the
        behavior could be horrible.
Signed-off-by: NTejun Heo <tj@kernel.org>
Reported-by: NDuncan <1i5t5.duncan@cox.net>
Tested-by: NDuncan <1i5t5.duncan@cox.net>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@vger.kernel.org
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47301

The existing work_on_cpu() implementation is hugely inefficient.  It
creates a new kthread, execute that single function and then let the
kthread die on each invocation.

Now that system_wq can handle concurrent executions, there's no
advantage of doing this.  Reimplement work_on_cpu() using system_wq
which makes it simpler and way more efficient.

stable: While this isn't a fix in itself, it's needed to fix a
        workqueue related bug in cpufreq/powernow-k8.  AFAICS, this
        shouldn't break other existing users.
Signed-off-by: NTejun Heo <tj@kernel.org>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@vger.kernel.org

After commit b6d86d3d (Fix DIV_ROUND_CLOSEST to support negative dividends),
the following warning is seen if the kernel is compiled with W=1 (-Wextra):

warning: comparison of unsigned expression >= 0 is always true

The warning is due to the test '((typeof(x))-1) >= 0', which is used to detect
if the variable type is unsigned. Research on the web suggests that the warning
disappears if '>' instead of '>=' is used for the comparison.

Tests after changing the macro along that line show that the warning is gone,
and that the result is still correct:

i=-4: DIV_ROUND_CLOSEST(i, 2)=-2
i=-3: DIV_ROUND_CLOSEST(i, 2)=-2
i=-2: DIV_ROUND_CLOSEST(i, 2)=-1
i=-1: DIV_ROUND_CLOSEST(i, 2)=-1
i=0: DIV_ROUND_CLOSEST(i, 2)=0
i=1: DIV_ROUND_CLOSEST(i, 2)=1
i=2: DIV_ROUND_CLOSEST(i, 2)=1
i=3: DIV_ROUND_CLOSEST(i, 2)=2
i=4: DIV_ROUND_CLOSEST(i, 2)=2

Code size is the same as before.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Tested-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: NJean Delvare <khali@linux-fr.org>

It isn't always necessary to update the metadata when spares are
removed as the presence-or-not of a spare isn't really important to
the integrity of an array.
Also activating a spare doesn't always require updating the metadata
as the update on 'recovery-completed' is usually sufficient.

However the introduction of 'replacement' devices have made these
transitions sometimes more important.  For example the 'Replacement'
flag isn't cleared until the original device is removed, so we need
to ensure a metadata update after that 'spare' is removed.

So set MD_CHANGE_DEVS whenever a spare is activated or removed, to
complement the current situation where it is set when a spare is added
or a device is failed (or a number of other less common situations).

This is suitable for -stable as out-of-data metadata could lead
to data corruption.
This is only relevant for 3.3 and later 9when 'replacement' as
introduced.

Cc: stable@vger.kernel.org
Signed-off-by: NNeilBrown <neilb@suse.de>

When a replacement device becomes active, we mark the device that it
replaces as 'faulty' so that it can subsequently get removed.
However 'calc_degraded' only pays attention to the primary device, not
the replacement, so the array appears to become degraded, which is
wrong.

So teach 'calc_degraded' to consider any replacement if a primary
device is faulty.

This is suitable for -stable as an incorrect 'degraded' value can
confuse md and could lead to data corruption.
This is only relevant for 3.3 and later.

Cc: stable@vger.kernel.org
Reported-by: NRobin Hill <robin@robinhill.me.uk>
Reported-by: NJohn Drescher <drescherjm@gmail.com>
Signed-off-by: NNeilBrown <neilb@suse.de>

This reverts commit 895e3c5c.

While this patch seemed like a good idea and did help some workloads,
it hurts other workloads.
Large sequential O_DIRECT writes were faster,
Small random O_DIRECT writes were slower.

Other changes (batching RAID5 writes) have improved the sequential
writes using a different mechanism, so the net result of this patch
is definitely negative.  So revert it.
Reported-by: NShaohua Li <shli@kernel.org>
Tested-by: NJianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NNeilBrown <neilb@suse.de>

A heavy-load test on a MacBookPro6,1 is still showing a substantial
amount of read errors.  Increasing the maximum wait time to 128 ms
resolves the issue.
Signed-off-by: NParag Warudkar <parag.lkml@gmail.com>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The 'name' sysfs attribute is mandatory for hwmon devices, but was missing
in this driver.

Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: stable@vger.kernel.org
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Acked-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NJonathan Cameron <jic23@cam.ac.uk>

Pull hwspinlock fix from Ohad Ben-Cohen:
 "A single hwspinlock fix by Wei Yongjun, which prevents potential NULL
  dereferences"

* tag 'hwspinlock-3.6-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock:
  hwspinlock/core: move the dereference below the NULL test

IBM reported a soft lockup after applying the fix for the rename_lock
deadlock.  Commit c83ce989 ("VFS: Fix the nfs sillyrename regression
in kernel 2.6.38") was found to be the culprit.

The nfs sillyrename fix used DCACHE_DISCONNECTED to indicate that the
dentry was killed.  This flag can be set on non-killed dentries too,
which results in infinite retries when trying to traverse the dentry
tree.

This patch introduces a separate flag: DCACHE_DENTRY_KILLED, which is
only set in d_kill() and makes try_to_ascend() test only this flag.

IBM reported successful test results with this patch.
Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

From Sascha Hauer:

ARM i.MX: Two fixes for i.MX
- armadillo5x0 board broken since v3.5 (stable material)
- i.MX25 Architecture broken since v3.6-rc1

* tag 'imx-fixes' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM i.MX25: Make timer irq work again
  ARM: imx: armadillo5x0: Fix illegal register access

Since i.MX has SPARSE_IRQ enabled the i.MX25 timer is broken. This
is because the internal irqs now start at an offset of NR_IRQS_LEGACY.
The patch fixed this up, but missed the i.MX25 timer which used a
hardcoded value instead of a define. This patch introduces a define
for the timer irq and uses it.

This is broken since introduced with 3.6-rc1:

| commit 8842a9e2
| Author: Shawn Guo <shawn.guo@linaro.org>
| Date:   Thu Jun 14 11:16:14 2012 +0800
|
|    ARM: imx: enable SPARSE_IRQ for imx platform
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>